So I just bought a new carbon filter since I feel like my old one was not working. What do you guys do with your old ones? I just have a single plant in a 2x2, so I might put my old one on the other end of my fan since it still might have a little life left in it. Thoughts?
Old Reviews Old Carbon Filter
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Shizznit
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I dispose of my old one when the time comes. Probably doesn’t help you any but figured I’d answer it nonetheless lol. As far as placing the old one on the front of your exhaust it would probably restrict your airflow more which may impede your filters performance not to mention effecting heat extraction as well. Just my option tho. I’m no expert.
Kreatnkaos
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There are ways to refill them if you buy activated charcoal. This depends on how DIY you are. Most filters are not designed to be refilled, but it is doable. Heck you can even make your own custom filter that can be refilled instead of thrown away.
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myotis
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I asked this last year as think its a waste to chuck away when charcoal could be put into them again,
You could drill a hole or 2 at one end and pour out the old charcoal and refill with new stuff, then seal the hole to keep it in, bit of tape would do.
I ain't done this but it seems simple enough lol
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Some filters use rivets to hold them together (easily drilled and replaced with screws) some use screws........activated carbon can be bought from pet supply places ( used in aquarium filters).....price each ( new filter vs replacement carbon) to figure out if it's worth it.......
Had to go refresh my memory.........supposedly the old carbon can be "refreshed" by heating in an oven at 450f to 500f for a couple of 1 hour cycles....haven't tried it myself yet. If you try, make sure to just heat the poured out carbon in a tray and not put whole filter in the oven as there is most likely a fine mesh particle screen that may not be made of metal.
Had to go refresh my memory.........supposedly the old carbon can be "refreshed" by heating in an oven at 450f to 500f for a couple of 1 hour cycles....haven't tried it myself yet. If you try, make sure to just heat the poured out carbon in a tray and not put whole filter in the oven as there is most likely a fine mesh particle screen that may not be made of metal.
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myotis
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I was thinking that myself.
Isn't hard at all. Aquarium shops sell it by the bagload. Just wash it before use, let it dry (in an 50°C/122°F oven is faster) and pack it well inside the cannister. The trick is to fill it as much as humanly possible.
You beat me to it brother
Sorry, doesn't work mate. You need +800°C / +1472°F to reactivate the coal and afterwards you need to wash it again in acid (sulphuric or nitric) to open the pores. It's far cheaper and safer to buy some in a pet shop or aquarium shop as you said
I use this stuff and build bucket filters in addition to my standard fan/filter combo. Stick a 4" PVC pipe into the center of a 5 gallon bucket with a lid. Drill holes in the pipe and the bucket. Wrap in window screen, fill with pellets, attach duct to pipe. Bam! Massive filter. the 20lb is what you'll need to fill a 5-gal bucket and the pipe.
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In olden times we used to spray the charcoal with fabric softener, like a sploof.
